Applicator tube



FIG. 1 is a top front perspective view of an applicator tube showing my new design;

FIG. 2 is a side elevational view thereof, the opposite side being a mirror image;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof with the bottom open;

FIG. 5 is a fragmentary side view of the bottom portion of the applicator tube after sealing, shown separately for clarity of illustration;

FIG. 6 is a fragmentary perspective view of FIG. 5; and,

FIG. 7 is a perspective view of the applicator tube after sealing.

The undisclosed insides of the applicator tube form no part of the claimed design. 

The ornamental design for an applicator tube, as shown and described. 